By Michelle Starr
A few months ago, on 18 December 2018, a massive airburst in the skies above Earth exploded with the equivalent of 173 kilotons of TNT.
That’s over 10 times the amount released by the Hiroshima bombing (15 kilotons), and the third largest meteor explosion in over 100 years, coming in behind the 2013 Chelyabinsk explosion (440 kilotons) and the Tunguska event in 1908 (at least 3 megatons).
How on Earth do you miss such a huge explosion? Well, there wasn’t anyone around to watch it happen.
It exploded above the clouds over the Bering Sea, near but not near enough to the closest land, Russia’s Kamchatka Peninsula.
A meteor that explodes in a mid-air fireball is also known as a bolide.
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